Question

Find k if x-k is a factor of x2 - X - 6.​

Answer 1

Answer:

3

Step-by-step explanation:

Let's factorise it...

x² - x - 6

x² - 3x + 2x - 6

x ( x - 3 ) + 2 ( x - 3 )

( x - 3 ) ( x + 2 )

x - k = x - 3

k = 3

Answer 2

Answer:

K=3

Step-by-step explanation:

x2-x-6

factorise it

x2-3x+2x-6

x(x-3)+2(x-3)

(x+2) (x-3)

so we get two values of x

x=-2. x=3

so x=3

x-k=3-k

so k=3